docs(skills): add documentation for /skills command with screenshot

Documents the /skills slash command in the slash commands guide,
including the screenshot and explanation that it's Claude Code only.

docs/slash-commands.md

@@ -14,11 +14,30 @@ Maestro provides built-in slash commands that are handled internally (not sent t
 |---------|-------------|
 | `/history` | Generate a synopsis of recent work and add to the History panel |
 | `/wizard` | Start the planning wizard for Auto Run documents |
+| `/skills` | List available Claude Code skills for this project *(Claude Code only)* |
 
 <Tip>
 The `/wizard` command can take optional natural language input: `/wizard add user authentication feature` to provide initial context.
 </Tip>
 
+### Skills Enumeration
+
+The `/skills` command displays all Claude Code skills available in your project. Skills are extensions that provide domain-specific knowledge and capabilities to Claude Code.
+
+<Frame>
+  <img src="/screenshots/skills-enumeration.png" alt="Skills enumeration showing project skills with name, token count, and description" />
+</Frame>
+
+Skills are loaded from:
+- **Project skills**: `.claude/skills/<skill-name>/skill.md` in your project directory
+- **User skills**: `~/.claude/skills/<skill-name>/skill.md` for personal skills
+
+Each skill is displayed with its name, approximate token count, and description. This command is only available when using Claude Code as your AI provider.
+
+<Note>
+The `/skills` command is a Maestro feature that reads skill files directly—it doesn't invoke Claude Code's native `/skills` command (which requires an interactive terminal).
+</Note>
+
 ## Custom AI Commands
 
 Create your own slash commands in **Settings → AI Commands**. Each command has a trigger (e.g., `/deploy`) and a prompt that gets sent to the AI agent.